CN205133364U - Shale atmospheric pressure splits and returns flowing back degree of depth processing system - Google Patents
Shale atmospheric pressure splits and returns flowing back degree of depth processing system Download PDFInfo
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- CN205133364U CN205133364U CN201520969268.6U CN201520969268U CN205133364U CN 205133364 U CN205133364 U CN 205133364U CN 201520969268 U CN201520969268 U CN 201520969268U CN 205133364 U CN205133364 U CN 205133364U
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- ozone oxidation
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Abstract
The utility model discloses a shale atmospheric pressure splits and returns flowing back degree of depth processing system, including ozone oxidation system and bological aerated filter system, the ozone oxidation system includes ozone generator, ozone oxidation tower, wastewater collection pond I and wastewater collection pond II, the bological aerated filter system includes biological filter I and biological filter II, the bottom of ozone oxidation tower is equipped with the supporting layer, and the inlet tube passes through supporting layer water distribution uniformity, be equipped with the outlet pipe on the ozone oxidation tower of district top that packs, the outlet pipe links to each other with wastewater collection pond II, and wastewater collection pond II links to each other with biological filter I's filtering pond inlet tube, its bottom is located to biological filter I's filtering pond inlet tube, and biological filter I's top and biological filter II's bottom are passed through the filtering pond outlet pipe and is linked to each other. Shale atmospheric pressure splits and returns flowing back processing system and make all kinds of polluting substances in the waste water got rid of through the advanced oxidation of ozone, the anaerobism of biological filter, good oxygen biodegradable, has guaranteed water quality of water effectively, and shale atmospheric pressure splits and returns flowing back treatment cost greatly reduced.
Description
Technical field
The utility model relates to a kind of fracturing outlet liquid advanced treatment system, is particularly useful for shale gas fracturing outlet liquid advanced treatment system, belongs to relief liquor processing technology field.
Background technology
Shale gas is a kind of important unconventional energy resource, and China is in the upsurge of exploitation shale gas in recent years, and country explicitly calls for the exploitation advancing the unconventional petroleum resourceses such as shale gas in " 12 " planning
Comparatively conventional gas is compared, and because shale formation rate of permeation is very low, development difficulty is very large, and therefore waterfrac treatment is the Main Means of exploitation shale gas, but the process returning discharge opeing after pressing crack construction is difficult to meet the requirement of environmental protection.Containing guanidine glue, formaldehyde, petroleum-type and other various additive in shale gas fracturing outlet liquid.Adding of numerous additive makes fracturing liquid have high COD value, high stability, the features such as high viscosity.Simultaneously because additive types is various, make the reduction difficulty of COD value become large, the wetting ability organic additive more not easily purified, is difficult to remove from waste water.Therefore, fracturing outlet liquid is effectively processed, reach relevant water quality emission request, this seems especially important for alleviating the environmental problem in development area, simultaneously for ensure shale gas normal production and Sustainable development, realize cleaner production and fresh-water-saving resource has very important realistic meaning.
In addition, ozone high grade oxidation technology and biologic treating technique are widely used in wastewater treatment.Ozone high grade oxidation technology can make macromolecule contaminant open loop degrade, and improves the biodegradability of waste water; Biologic treating technique can the organic pollutant of effective degrading waste water, makes water outlet reach emission request.
For treatment process mainly natural air drying and the chemical treatment of fracturing outlet liquid, natural air drying is stored in by fracturing outlet liquid special to return in clean-up pit, takes the method for spontaneous evaporation to carry out mummification, last directly landfill.This mode is the at substantial time not only, and sludge bulking after landfill still can fuel-displaced, the pollutent such as heavy metal, aldehyde, phenol of diafiltration, there is serious secondary pollution.Chemical treatment is that discharge opeing is concentrated carries out the pre-treatment such as dosing flocculation, filtration by returning, and then will return discharge opeing is recycled in stratum, and the processing technological flow of this method is complicated, and fails to realize qualified discharge.
Summary of the invention
In order to solve existing shale gas fracturing outlet liquid intractability up to standard large, can not run continuously and the high problem of processing cost, the utility model provides a kind of shale gas fracturing outlet liquid treatment system, effectively can solve shale gas fracturing outlet liquid intractability up to standard large, the problem that cost is high, and system can be made to run continuously.
The utility model solves the technical scheme that its technical problem adopts: a kind of shale gas fracturing outlet liquid advanced treatment system, comprise ozone oxidation system and BAF system, ozone oxidation system comprises ozonizer, ozone oxidation tower, wastewater collection pond I and wastewater collection pond II; BAF system comprises biological filter I and biological filter II; The bottom of described ozone oxidation tower is provided with the water inlet pipe be communicated with wastewater collection pond I and the inlet pipe be communicated with ozonizer, and the bottom of ozone oxidation tower is provided with supporting layer, and water inlet pipe is by supporting layer water distribution uniformity; Slag-drip opening is provided with above supporting layer, the top of ozone oxidation tower is provided with filler import, the middle part of ozone oxidation tower is provided with packing area, aeration vertical tube and multilayer aeration transverse tube, and aeration vertical tube passes perpendicularly through multilayer aeration transverse tube, and packing area is between adjacent two aeration transverse tubes; Ozone oxidation tower above packing area is provided with rising pipe, and rising pipe is connected with wastewater collection pond II, and wastewater collection pond II is connected with the filter tank water inlet pipe of biological filter I; The filter tank water inlet pipe of biological filter I is located at bottom it, and the top of biological filter I is connected by filter tank rising pipe with the bottom of biological filter II; The bottom of biological filter I and biological filter II is equipped with filter tank supporting layer, and filter tank water inlet pipe, by supporting layer water distribution uniformity, is provided with biologic packing material district above the supporting layer of filter tank; The middle part of biological filter I is provided with filter tank aeration transverse tube, and the biologic packing material district of biological filter I lays respectively at the both sides up and down of filter tank aeration transverse tube; Be provided with filter tank aeration vertical tube and number metafiltration pond aeration transverse tube in the II of biological filter, filter tank aeration vertical tube passes perpendicularly through several metafiltration ponds aeration transverse tube, and biologic packing material district is positioned between adjacent two filter tank aeration transverse tubes; The filter tank rising pipe be connected with reuse water collecting tank is provided with above the II of biological filter.
As a kind of optimal way: ozone oxidation tower is enclosed right cylinder, its top is arc, and the top of ozone oxidation tower is provided with the exhaust port be connected with ozone breaker.
As a kind of optimal way: the inlet pipe of ozone oxidation tower is positioned at bottom supporting layer top, packing layer, is connected with the aeration transverse tube of bottom.
As a kind of optimal way: be provided with 4 layers of aeration transverse tube in ozone oxidation tower, aeration transverse tube is provided with solarization air cap, and in solarization air cap built-in stainless steel mesh, each layer aeration transverse tube is that cruciform forms by 2 tube having holes, connected by aeration vertical tube, junction is right-angled intersection.
As a kind of optimal way: the aeration hole count of 4 layers of aeration transverse tube from bottom to top ratio is 6:3:2:1.
As a kind of optimal way: inlet pipe is provided with valve, inlet pipe is connected with aeration tube.
As a kind of optimal way: reaction tower packing layer between supporting layer to rising pipe, and lower than rising pipe.
As a kind of optimal way: the reaction tower main body of biological filter I and biological filter II is cubic cylinder, and upper opening.
As a kind of optimal way: the filter tank aeration tube of biological filter I is positioned in the middle part of the biologic packing material layer of biological filter I, and this filter tank aeration tube is provided with solarization air cap, and wherein built-in stainless steel mesh; Biological filter II is provided with 4 metafiltration pond aeration transverse tubes, and filter tank aeration transverse tube is provided with solarization air cap, and wherein built-in stainless steel mesh, each metafiltration pond aeration transverse tube is that cruciform forms by 2 tube having holes, and connected by filter tank aeration vertical tube, junction is right-angled intersection.
As a kind of optimal way: the aeration hole count of 4 layers of aeration transverse tube from bottom to top ratio is 6:3:2:1.
As a kind of optimal way: the biologic packing material district below the aeration tube of I filter tank, biological filter is anaerobism section, is more than aerobic section.
As a kind of optimal way: the aerating system of BAF system is provided by air compressor machine, the filter tank inlet pipe that biological filter I is connected with biological filter II is provided with valve.
As a kind of optimal way: the filter tank water inlet pipe of biological filter I is positioned at the bottom of the filter tank supporting layer of biological filter I, and is connected with the rising pipe of ozone oxidation system; The filter tank water inlet pipe of biological filter II is positioned at the bottom of the filter tank supporting layer of biological filter II, and is connected with the filter tank rising pipe of biological filter I.
As a kind of optimal way: the filter tank rising pipe of biological filter I and biological filter II is back flushing rising pipe, lay respectively at body top, respective pond, and lower than rising pipe.
Wherein: described water inlet system and aerating system control by automatic control device.
Compared with prior art, the advantage that the utility model has and positively effect are: ozone high grade oxidation technology and biological filter technology combine by native system, effectively ensure that effluent quality, and shale gas fracturing outlet liquid processing cost reduces greatly; Whole system equipment is simple, connect rationally, reliable and stable, run and maintenance cost low, be widely used in fracturing outlet liquid process, be particularly useful for the process of shale gas fracturing outlet liquid.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1. inlet pipe, 2. water inlet pipe, 3. aeration transverse tube, 4. aeration vertical tube, 5. exhaust port, 6. filler import, 7. supporting layer, 8. packing area, 9. slag-drip opening, 10. oxidizing tower rising pipe, 11. filter tank water inlet pipes, 12. biologic packing material districts, 13. back flushing rising pipes, 14. filter tank inlet pipe, 15. filter tank rising pipes, 16. filter tank aeration transverse tubes, 17. filter tank aeration vertical tubes, 18. filter tank supporting layers, 19. rising pipes, 101. ozonizer, 102. ozone oxidation tower, 103. ozone breaker, 104. wastewater collection pond I, 105. wastewater collection pond II, 106. biological filter I, 107. biological filter II, 108. reuse water collecting tanks, 109. air compressor machine.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, a kind of shale gas fracturing outlet liquid treatment system described in the utility model, can reach the requirement of advanced treatment, whole system comprises ozone high grade oxidation system and BAF system.
Ozone oxidation system forms primarily of inlet pipe 1, water inlet pipe 2, aeration transverse tube 3, aeration vertical tube 4, exhaust port 5, filler import 6, supporting layer 7, packing area 8, slag-drip opening 9, oxidizing tower rising pipe 10, ozonizer 101, ozone oxidation tower 102, ozone breaker 103, wastewater collection pond I104 and wastewater collection pond II105.BAF system forms primarily of biological filter I106 and biological filter II107.It comprises filter tank water inlet pipe 11, biologic packing material district 12, back flushing rising pipe 13, filter tank inlet pipe 14, filter tank rising pipe 15, filter tank aeration transverse tube 16, filter tank aeration vertical tube 17, filter tank supporting layer 18 and rising pipe 19.
Wherein: the bottom of described ozone oxidation tower is provided with the water inlet pipe be communicated with wastewater collection pond I and the inlet pipe be communicated with ozonizer, and the bottom of ozone oxidation tower is provided with supporting layer, water inlet pipe is by supporting layer water distribution uniformity; Slag-drip opening is provided with above supporting layer, the top of ozone oxidation tower is provided with filler import, the middle part of ozone oxidation tower is provided with packing area, aeration vertical tube and multilayer aeration transverse tube, and aeration vertical tube passes perpendicularly through multilayer aeration transverse tube, and packing area is between adjacent two aeration transverse tubes.
Ozone oxidation tower is enclosed right cylinder, and its top is arc, and the top of ozone oxidation tower is provided with the exhaust port be connected with ozone breaker.The inlet pipe of ozone oxidation tower is positioned at bottom supporting layer top, packing layer, is connected with the aeration transverse tube of bottom.Be provided with 4 layers of aeration transverse tube in ozone oxidation tower, aeration transverse tube is provided with solarization air cap, and in solarization air cap built-in stainless steel mesh, each layer aeration transverse tube is that cruciform forms by 2 tube having holes, is connected by aeration vertical tube, and junction is right-angled intersection.The aeration hole count of 4 layers of aeration transverse tube from bottom to top ratio is 6:3:2:1.Inlet pipe is provided with valve, and inlet pipe is connected with aeration tube.Reaction tower packing layer between supporting layer to rising pipe, and lower than rising pipe.
Ozone oxidation tower above packing area is provided with rising pipe, and rising pipe is connected with wastewater collection pond II, and wastewater collection pond II is connected with the filter tank water inlet pipe of biological filter I; The filter tank water inlet pipe of biological filter I is located at bottom it, and the top of biological filter I is connected by filter tank rising pipe with the bottom of biological filter II; The bottom of biological filter I and biological filter II is equipped with filter tank supporting layer, and filter tank water inlet pipe, by supporting layer water distribution uniformity, is provided with biologic packing material district above the supporting layer of filter tank; The middle part of biological filter I is provided with filter tank aeration transverse tube, and the biologic packing material district of biological filter I lays respectively at the both sides up and down of filter tank aeration transverse tube; Be provided with filter tank aeration vertical tube and number metafiltration pond aeration transverse tube in the II of biological filter, filter tank aeration vertical tube passes perpendicularly through several metafiltration ponds aeration transverse tube, and biologic packing material district is positioned between adjacent two filter tank aeration transverse tubes; The filter tank rising pipe be connected with reuse water collecting tank is provided with above the II of biological filter.
The reaction tower main body of biological filter I and biological filter II is cubic cylinder, and upper opening.The filter tank aeration tube of biological filter I is positioned in the middle part of the biologic packing material layer of biological filter I, and this filter tank aeration tube is provided with solarization air cap, and wherein built-in stainless steel mesh; Biological filter II is provided with 4 metafiltration pond aeration transverse tubes, and filter tank aeration transverse tube is provided with solarization air cap, and wherein built-in stainless steel mesh, each metafiltration pond aeration transverse tube is that cruciform forms by 2 tube having holes, and connected by filter tank aeration vertical tube, junction is right-angled intersection.The aeration hole count of 4 layers of aeration transverse tube from bottom to top ratio is 6:3:2:1.Biologic packing material district below the aeration tube of I filter tank, biological filter is anaerobism section, is more than aerobic section.The aerating system of BAF system is provided by air compressor machine, and the filter tank inlet pipe that biological filter I is connected with biological filter II is provided with valve.The filter tank water inlet pipe of biological filter I is positioned at the bottom of the filter tank supporting layer of biological filter I, and is connected with the rising pipe of ozone oxidation system; The filter tank water inlet pipe of biological filter II is positioned at the bottom of the filter tank supporting layer of biological filter II, and is connected with the filter tank rising pipe of biological filter I.The filter tank rising pipe of biological filter I and biological filter II is back flushing rising pipe, lays respectively at body top, respective pond, and lower than rising pipe.
During application:
Wastewater collection pond I is pumped into after the broken glue of shale gas fracturing outlet liquid oxidation premenstruum, regulate waste water ph to 8 ~ 12, waste water after adjustment enters ozone oxidation tower supporting layer 7 by water inlet pipe 2, waste water passes through packing area 8 from bottom to top by after supporting layer water distribution uniformity, after controlling waste water stop 0.5 ~ 2h, enter wastewater collection pond II by rising pipe 10; Wherein ozone oxidation tower is closed tower body, and supporting layer 7 is made up of homogeneous quartz sand, and packing area 8 is mixed by granulated active carbon and Pall ring and forms, and its composition volume ratio is 1:1.While waste water enters ozone oxidation tower, ozonizer is started working, ozone enters ozone oxidation tower by inlet pipe 1, start aeration by aeration vertical tube 4 and 4 layers of aeration transverse tube 3 and control aeration rate, by the catalysis of packing layer 8, ozone is by the macromolecule contaminant matter open loop in waste water, and the pollutent in oxidized waste water, thus reach degraded COD, improve wastewater biodegradability object; Tail gas in tower body is by being discharged by exhaust port 5 after ozone breaker 103.
Waste water in the II of wastewater collection pond can pump into biological filter after stopping 1h and carry out further biochemical treatment.Biological filter I and biological filter II must carry out microbial inoculant before system cloud gray model, makes microorganism biofilm in bio-filter stuffing layer.Waste water enters biological filter I supporting layer 18 by water inlet pipe 11, waste water passes through packing area 12 from bottom to top by after supporting layer 18 water distribution uniformity, control retention time of sewage, when flowing through biologic packing material district 12, the organism contained in water inlet, ammonia nitrogen class material are partially removed.The supporting layer of biological filter II is entered by filter tank rising pipe 15, packing area is passed through from bottom to top by after supporting layer water distribution uniformity, control retention time of sewage, the organism contained in water inlet and ammonia nitrogen class material are removed gradually, and the water after finally having processed enters reuse water collecting tank by rising pipe 19.Waste water enters filter tank simultaneously, and air compressor machine is started working, and air enters biological filter by filter tank inlet pipe 14, is started aeration and is controlled aeration rate, complete TSA by the filter tank aeration transverse tube of multilayer and aeration vertical tube 17.
After for some time is run in biological filter, biofilm thickness increases, need to carry out back flushing, now close aerating system, allowing back flushing wash steam water interface enters bottom biological filter by eyelet, carry out loosening via supporting layer and bio-filter stuffing layer again and rinse, the microbial film that back flushing comes off is discharged by top back flushing rising pipe 14.
Claims (10)
1. a shale gas fracturing outlet liquid advanced treatment system, comprises ozone oxidation system and BAF system, it is characterized in that: ozone oxidation system comprises ozonizer, ozone oxidation tower, wastewater collection pond I and wastewater collection pond II; BAF system comprises biological filter I and biological filter II; The bottom of described ozone oxidation tower is provided with the water inlet pipe be communicated with wastewater collection pond I and the inlet pipe be communicated with ozonizer, and the bottom of ozone oxidation tower is provided with supporting layer, and water inlet pipe is by supporting layer water distribution uniformity; Slag-drip opening is provided with above supporting layer, the top of ozone oxidation tower is provided with filler import, the middle part of ozone oxidation tower is provided with packing area, aeration vertical tube and multilayer aeration transverse tube, and aeration vertical tube passes perpendicularly through multilayer aeration transverse tube, and packing area is between adjacent two aeration transverse tubes; Ozone oxidation tower above packing area is provided with rising pipe, and rising pipe is connected with wastewater collection pond II, and wastewater collection pond II is connected with the filter tank water inlet pipe of biological filter I; The filter tank water inlet pipe of biological filter I is located at bottom it, and the top of biological filter I is connected by filter tank rising pipe with the bottom of biological filter II; The bottom of biological filter I and biological filter II is equipped with filter tank supporting layer, and filter tank water inlet pipe, by supporting layer water distribution uniformity, is provided with biologic packing material district above the supporting layer of filter tank; The middle part of biological filter I is provided with filter tank aeration transverse tube, and the biologic packing material district of biological filter I lays respectively at the both sides up and down of filter tank aeration transverse tube; Be provided with filter tank aeration vertical tube and number metafiltration pond aeration transverse tube in the II of biological filter, filter tank aeration vertical tube passes perpendicularly through several metafiltration ponds aeration transverse tube, and biologic packing material district is positioned between adjacent two filter tank aeration transverse tubes; The filter tank rising pipe be connected with reuse water collecting tank is provided with above the II of biological filter.
2. a kind of shale gas fracturing outlet liquid advanced treatment system according to claim 1, it is characterized in that: ozone oxidation tower is enclosed right cylinder, its top is arc, and the top of ozone oxidation tower is provided with the exhaust port be connected with ozone breaker.
3. a kind of shale gas fracturing outlet liquid advanced treatment system according to claim 1, is characterized in that: the inlet pipe of ozone oxidation tower is positioned at bottom supporting layer top, packing layer, is connected with the aeration transverse tube of bottom.
4. a kind of shale gas fracturing outlet liquid advanced treatment system according to claim 1, is characterized in that: reaction tower packing layer between supporting layer to rising pipe, and lower than rising pipe.
5. a kind of shale gas fracturing outlet liquid advanced treatment system according to claim 3, it is characterized in that: in ozone oxidation tower, be provided with 4 layers of aeration transverse tube, aeration transverse tube is provided with solarization air cap, and in solarization air cap built-in stainless steel mesh, each layer aeration transverse tube is that cruciform forms by 2 tube having holes, connected by aeration vertical tube, junction is right-angled intersection, and the aeration hole count of 4 layers of aeration transverse tube from bottom to top ratio is 6:3:2:1.
6. a kind of shale gas fracturing outlet liquid advanced treatment system according to claim 1, is characterized in that: the reaction tower main body of biological filter I and biological filter II is cubic cylinder, and upper opening.
7. a kind of shale gas fracturing outlet liquid advanced treatment system according to claim 6, it is characterized in that: the filter tank aeration tube of biological filter I is positioned in the middle part of the biologic packing material layer of biological filter I, this filter tank aeration tube is provided with solarization air cap, and wherein built-in stainless steel mesh; Biological filter II is provided with 4 metafiltration pond aeration transverse tubes, filter tank aeration transverse tube is provided with solarization air cap, and wherein built-in stainless steel mesh, each metafiltration pond aeration transverse tube is that cruciform forms by 2 tube having holes, connected by filter tank aeration vertical tube, junction is right-angled intersection, and the aeration hole count of 4 layers of aeration transverse tube from bottom to top ratio is 6:3:2:1.
8. a kind of shale gas fracturing outlet liquid advanced treatment system according to claim 6, is characterized in that: the biologic packing material district below the aeration tube of I filter tank, biological filter is anaerobism section, is more than aerobic section.
9. a kind of shale gas fracturing outlet liquid advanced treatment system according to claim 6, is characterized in that: the filter tank water inlet pipe of biological filter I is positioned at the bottom of the filter tank supporting layer of biological filter I, and is connected with the rising pipe of ozone oxidation system; The filter tank water inlet pipe of biological filter II is positioned at the bottom of the filter tank supporting layer of biological filter II, and is connected with the filter tank rising pipe of biological filter I.
10. a kind of shale gas fracturing outlet liquid advanced treatment system according to claim 6, is characterized in that: the filter tank rising pipe of biological filter I and biological filter II is back flushing rising pipe, lays respectively at body top, respective pond, and lower than rising pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520969268.6U CN205133364U (en) | 2015-11-30 | 2015-11-30 | Shale atmospheric pressure splits and returns flowing back degree of depth processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520969268.6U CN205133364U (en) | 2015-11-30 | 2015-11-30 | Shale atmospheric pressure splits and returns flowing back degree of depth processing system |
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| CN205133364U true CN205133364U (en) | 2016-04-06 |
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| CN201520969268.6U Expired - Fee Related CN205133364U (en) | 2015-11-30 | 2015-11-30 | Shale atmospheric pressure splits and returns flowing back degree of depth processing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106800349A (en) * | 2017-02-17 | 2017-06-06 | 石峰 | A kind of reactor for deep purifying of drinking water |
| CN112479492A (en) * | 2020-11-18 | 2021-03-12 | 三桶油环保科技(宜兴)有限公司 | Treatment method for enabling fracturing flow-back fluid to meet four types of water quality discharge |
| CN113277684A (en) * | 2021-06-17 | 2021-08-20 | 刘百仓 | Method for removing organic matters in shale gas wastewater |
-
2015
- 2015-11-30 CN CN201520969268.6U patent/CN205133364U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106800349A (en) * | 2017-02-17 | 2017-06-06 | 石峰 | A kind of reactor for deep purifying of drinking water |
| CN112479492A (en) * | 2020-11-18 | 2021-03-12 | 三桶油环保科技(宜兴)有限公司 | Treatment method for enabling fracturing flow-back fluid to meet four types of water quality discharge |
| CN113277684A (en) * | 2021-06-17 | 2021-08-20 | 刘百仓 | Method for removing organic matters in shale gas wastewater |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161130 |
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